DE10230899B4 - Method for diagnosing a faulty valve lift position of an internal combustion engine - Google Patents
Method for diagnosing a faulty valve lift position of an internal combustion engine Download PDFInfo
- Publication number
- DE10230899B4 DE10230899B4 DE10230899A DE10230899A DE10230899B4 DE 10230899 B4 DE10230899 B4 DE 10230899B4 DE 10230899 A DE10230899 A DE 10230899A DE 10230899 A DE10230899 A DE 10230899A DE 10230899 B4 DE10230899 B4 DE 10230899B4
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- combustion engine
- valve lift
- defect
- adjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007547 defect Effects 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 6
- 238000002405 diagnostic procedure Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/082—Safety, indicating, or supervising devices relating to valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0223—Variable control of the intake valves only
- F02D13/0226—Variable control of the intake valves only changing valve lift or valve lift and timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/12—Fail safe operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/14—Determining a position, e.g. phase or lift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Verfahren zum Diagnostizieren eines Defektes eines Verstellmechanismus zum Verstellen des Ventilhubes mindestens eines Einlassventils einer Brennkraftmaschine, deren Betrieb von einem Betriebssteuergerät geregelt wird, bei welchem Verfahren ein Betriebsparameter der Brennkraftmaschine, der bei einer tatsächlichen Verstellung des Ventilhubes von dem Betriebssteuergerät auf einen Sollwert geregelt wird, überwacht wird und das Betriebssteuergerät aus einer bei einer angesteuerten Ventilhubverstellung auftretenden Abweichung des Betriebsparameters von dem Sollwert auf einen Defekt des Verstellmechanismus schließt, dadurch gekennzeichnet, dass das Betriebssteuergerät so ausgelegt ist, dass es bei Erkennen eines Defektes des Verstellmechanismus den Betrieb der Brennkraftmaschine entsprechend dem Ist-Hub des Einlassventils zum Zeitpunkt der angesteuerten Ventilhubverstellung regelt.method for diagnosing a defect of an adjusting mechanism for Adjusting the valve lift of at least one inlet valve of a Internal combustion engine whose operation is regulated by an operating control unit in which method an operating parameter of the internal combustion engine, the one with an actual adjustment the valve lift of the operating control unit to a setpoint regulated is being supervised and the operating control unit from a occurring at a controlled valve lift Deviation of the operating parameter from the setpoint to a defect the adjusting mechanism closes, characterized in that the operation control device designed is that it is upon detection of a defect of the adjustment mechanism the operation of the internal combustion engine according to the actual stroke of Inlet valve at the time of the controlled valve lift regulates.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Diagnostizieren eines Defektes eines Verstellmechanismus zum Verstellen des Ventilhubes mindestens eines Einlassventils einer Brennkraftmaschine, deren Betrieb von einem Betriebssteuergerät geregelt wird.The The present invention relates to a method for diagnosing a defect of an adjusting mechanism for adjusting the valve lift at least an intake valve of an internal combustion engine whose operation of regulated an operating control unit becomes.
Brennkraftmaschinen
mit Einlassventilen, deren Ventilhub durch einen Verstellmechanismus kontinuierlich
oder diskret verstellbar ist, werden in Kraftfahrzeugen immer häufiger eingesetzt,
siehe z.B.
In
der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Diagnostizieren einer fehlerhaften Ventilhub verstellung eines Einlassventils einer Brennkraftmaschine anzugeben, das ohne Ventilhubsensor auskommt, wobei im Fehlerfall ein Betrieb der Brennkraftmaschine sichergestellt werden soll.Of the The present invention is based on the object, a method for diagnosing a faulty valve lift adjustment of a Specify inlet valve of an internal combustion engine, the without valve lift sensor gets along, in case of failure operation of the internal combustion engine should be ensured.
Diese Aufgabe wird durch das in Anspruch 1 definierte Verfahren gelöst.These The object is achieved by the method defined in claim 1.
Die vorliegende Erfindung geht von der Erkenntnis aus, dass bestimmte Betriebsparameter der Brennkraftmaschine bei einer tatsächlichen Verstellung des Ventilhubes von dem Betriebssteuergerät auf einen Sollwert, insbesondere einen konstanten Sollwert, geregelt werden, bei einem Defekt des Verstellmechanismus jedoch von dem Sollwert deutlich abweichen, wenn eine Ventilhubverstellung angesteuert, jedoch nicht ausgeführt wird. Das Betriebssteuergerät kann dann aus einer derartigen Abweichung dieses Betriebsparameters von dem Sollwert auf einen Defekt des Verstellmechanismus schließen. Dabei ist das Betriebssteuergerät derart ausgelegt, dass es bei Erkennen eines Defektes des Verstellmechanismus den Betrieb der Brennkraftmaschine entsprechend dem Ist-Hub des Einlassventils zum Zeitpunkt der angesteuerten Ventilhubverstellung regelt.The The present invention is based on the recognition that certain Operating parameters of the internal combustion engine at an actual Adjustment of the valve lift from the operating control unit to a Setpoint, in particular a constant setpoint, are regulated, however, in case of a defect of the adjusting mechanism of the set value clearly deviate when a valve lift adjustment is activated, but not executed becomes. The operating control unit can then from such a deviation of this operating parameter from the setpoint close to a defect of the adjustment mechanism. there is the operation control unit designed so that it upon detection of a defect of the adjustment mechanism the operation of the internal combustion engine according to the actual stroke of Inlet valve at the time of the controlled valve lift regulates.
Bevorzugter Betriebsparameter für diesen Zweck ist das Luft/Kraftstoff-Verhältnis (Lambda). Falls beispielsweise das Betriebssteuergerät den Verstellmechanismus ansteuert, um von einem kleinen Ventilhub auf einen großen Ventilhub umzuschalten, und in dieser Situation aufgrund eines Defektes des Verstellmechanismus keine Ventilhubverstellung erfolgt, wird das Betriebssteuergerät die Kraftstoffeinspitzung entsprechend den Sollwerten für den großen Ventilhub ausführen. Da das Einlassventil in seiner Stellung kleineren Ventilhubes nur eine entsprechend geringere Luftmenge in den zugehörigen Zylinder einlässt, wird sich ein fetteres Luft/Kraftstoff-Verhältnis einstellen. Diese Änderung des Luft/Kraftstoff-Verhältnisses wird von der ohnehin vorhandenen Lambda-Sonde erfasst, und das Betriebssteuergerät schließt hieraus auf einen Defekt des Verstellmechanismus. Es versteht sich, dass im Prinzip das gleiche Verfahren abläuft, wenn das Betriebssteuergerät von einem großen Ventilhub auf einen kleinen Ventilhub umschaltet.preferred Operating parameters for this purpose is the air / fuel ratio (lambda). For example the operating control unit the adjusting mechanism controls to a small valve lift on a big one Switch valve lift, and in this situation due to a defect the adjusting mechanism is no valve lift adjustment is the operating control unit the fuel injection according to the set values for the large valve lift To run. Since the inlet valve in its position smaller valve lift only one correspondingly smaller amount of air into the associated cylinder, is a richer air / fuel ratio to adjust. This change of Air / fuel ratio is detected by the already existing lambda probe, and the operation control unit concludes from this on a defect of the adjustment mechanism. It is understood that In principle, the same procedure expires when the operation control unit of a huge Valve lift switches to a small valve lift.
Wie erwähnt, ist insbesondere das Luft/Kraftstoff-Verhältnis als zu überwachender Betriebsparameter für das erfindungsgemäße Diagnostizierverfahren geeignet, da sich eine fehlerhafte Ventilhubverstellung besonders deutlich in einer Änderung des Luft/Kraftstoff-Verhältnisses bemerkbar macht. Es können jedoch auch andere Betriebsparameter wie z. B. der Saugrohr druck, der Luftmassenstrom, die Drehzahl oder das Drehmoment als Betriebsparameter für das erfindungsgemäße Diagnostizierverfahren herangezogen werden, da sich auch diese Betriebsparameter bei einer angesteuerten, jedoch nicht ausgeführten Ventilhubverstellung ändern. Allerdings wird eine Überwachung des Luft/Kraftstoff-Verhältnisses aufgrund der höheren Zuverlässigkeit bevorzugt.As mentioned, In particular, the air / fuel ratio is to be monitored Operating parameters for the diagnostic method according to the invention suitable because a faulty valve lift adjustment especially clearly in a change the air / fuel ratio makes noticeable. It can However, other operating parameters such. B. the intake manifold pressure, the air mass flow, the speed or the torque as operating parameters for the Inventive diagnostic method used since these operating parameters are also controlled by a but not executed Change valve lift. However, a monitoring of the Air / fuel ratio due to the higher reliability prefers.
Bei einer Mehrzylinder-Brennkraftmaschine kann das erfindungsgemäße Verfahren zylinderindividuell durchgeführt werden, so dass dann jeder einzelne Verstellmechanismus diagnostiziert wird.at a multi-cylinder internal combustion engine, the inventive method performed individually for each cylinder so that then diagnoses each individual adjustment mechanism becomes.
Das erfindungsgemäße Diagnostizierverfahren kann bei Brennkraftmaschinen sowohl mit kontinuierlicher wie auch diskreter Ventilhubverstellung verwendet werden. Vorzugsweise wird es bei Brennkraftmaschinen mit diskreter Ventilhubverstellung eingesetzt, da in diesem Fall ein Defekt des Verstellmechanismus zu einer sprunghaften Änderung des überwachten Betriebsparameters führt.The Inventive diagnostic method Can be used in internal combustion engines both with continuous as well discrete valve lift adjustment can be used. Preferably it is used in internal combustion engines with discrete valve lift, because in this case, a defect of the adjustment mechanism to a sudden change of the supervised Operating parameters leads.
Weitere Einzelheiten des erfindungsgemäßen Verfahrens werden anhand der Zeichnung beschrieben, in derFurther Details of the method according to the invention are described with reference to the drawing, in which
Die
Der
Betrieb der Brennkraftmaschine
Der
Verstellmechanismus
Wenn das Betriebssteuergerät
When the operation control unit
Das
Betriebssteuergerät
Ein
Beispiel des beschriebenen Verfahrens wird durch das Flussdiagramm
der
Wenn
die Abfrage gemäß Stufe
Wie
bereits erwähnt,
könnte
für das
beschriebene Diagnostizierverfahren statt des Luft/Kraftstoff-Verhältnis auch
ein anderer Betriebsparameter wie z. B. der Saugrohrdruck, der Luftmassenstrom,
die Drehzahl oder das Drehmoment der Brennkraftmaschine
Gegebenenfalls könnten die Signale der Lambda-Sonde und eines weiteren Sensors auch gemeinsam bei dem Diagnostizierverfahren verwendet werden. Dies könnte beispielsweise zum Diagnostizieren eines Verstellmechanismus zum kontinuierlichen Verstellen des Ventilhubes vorteilhaft sein, bei dem eine kleine angesteuerte Ventilhubverstellung im Falle eines Defektes nur eine entsprechend kleine Abweichung des überwachten Betriebsparameters von einem Sollwert zur Folge hat.Optionally, the signals of the lambda probe and another sensor could also be used together in the diagnostic procedure become. This could be advantageous, for example, for diagnosing an adjusting mechanism for the continuous adjustment of the valve lift, in which case a small actuated valve lift adjustment in the event of a defect only results in a correspondingly small deviation of the monitored operating parameter from a desired value.
Claims (7)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10230899A DE10230899B4 (en) | 2002-07-09 | 2002-07-09 | Method for diagnosing a faulty valve lift position of an internal combustion engine |
FR0308338A FR2842253A1 (en) | 2002-07-09 | 2003-07-08 | METHOD FOR DIAGNOSING A DEFECTIVE VALVE LIFT ADJUSTMENT FOR AN INTERNAL COMBUSTION ENGINE |
US10/614,346 US6948358B2 (en) | 2002-07-09 | 2003-07-08 | Method for diagnosing incorrect valve lift adjustment in an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10230899A DE10230899B4 (en) | 2002-07-09 | 2002-07-09 | Method for diagnosing a faulty valve lift position of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10230899A1 DE10230899A1 (en) | 2004-02-05 |
DE10230899B4 true DE10230899B4 (en) | 2007-11-22 |
Family
ID=29761792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10230899A Expired - Fee Related DE10230899B4 (en) | 2002-07-09 | 2002-07-09 | Method for diagnosing a faulty valve lift position of an internal combustion engine |
Country Status (3)
Country | Link |
---|---|
US (1) | US6948358B2 (en) |
DE (1) | DE10230899B4 (en) |
FR (1) | FR2842253A1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10316898A1 (en) * | 2003-04-12 | 2004-11-04 | Audi Ag | Method for checking the functionality of a device for adjusting the stroke of the gas exchange valves of an internal combustion engine |
DE10355335B4 (en) * | 2003-11-27 | 2018-01-25 | Robert Bosch Gmbh | Method for operating an internal combustion engine |
DE102004013767B4 (en) * | 2004-03-20 | 2008-06-19 | Audi Ag | Method for diagnosing the functionality of a valve lift adjustment of an internal combustion engine |
DE102004062406B4 (en) * | 2004-12-23 | 2007-08-09 | Siemens Ag | Method and device for determining a phase of an internal combustion engine |
DE102005026054B4 (en) * | 2005-06-07 | 2007-04-12 | Dr.Ing.H.C. F. Porsche Ag | Method and device for monitoring the functioning of a valve lift adjusting device of an internal combustion engine in a cold start phase |
US7063057B1 (en) * | 2005-08-19 | 2006-06-20 | Delphi Technologies, Inc. | Method for effectively diagnosing the operational state of a variable valve lift device |
US7047924B1 (en) * | 2005-08-19 | 2006-05-23 | Delphi Technologies, Inc. | Method for diagnosing the operational state of a two-step variable valve lift device |
DE102006024271B4 (en) | 2006-05-24 | 2018-05-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for valve stroke diagnosis on an internal combustion engine |
DE102007013252A1 (en) * | 2007-03-20 | 2008-09-25 | Robert Bosch Gmbh | Method and device for monitoring the intake manifold pressure of an internal combustion engine |
EP2204566B1 (en) * | 2008-12-29 | 2011-06-29 | Fiat Group Automobiles S.p.A. | Adaptive control system of the air-fuel ratio of an internal combustione engine with a variable valve timing system |
GB2492102B (en) | 2011-06-21 | 2013-08-28 | Jaguar Cars | Improved emissions control during cam profile switching diagnostic operation |
DE102011088403B3 (en) * | 2011-12-13 | 2013-01-10 | Continental Automotive Gmbh | Determining a value for a valve lift of a valve of an individual cylinder of a multi-cylinder internal combustion engine |
US9512749B2 (en) * | 2012-06-05 | 2016-12-06 | GM Global Technology Operations LLC | System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator |
KR20150056284A (en) | 2013-11-15 | 2015-05-26 | 주식회사 현대케피코 | Method for verifying fixation status of a Cylinder De-Activation apparatus |
EP3015679B1 (en) | 2014-10-31 | 2018-12-05 | Winterthur Gas & Diesel AG | Cylinder for a reciprocating piston engine, reciprocating combustion engine, and method for operating same |
DK3015699T3 (en) | 2014-10-31 | 2019-03-11 | Winterthur Gas & Diesel Ag | Gas supply system with a control system and cylinder for a piston combustion engine, piston combustion engine and method of operation of a piston combustion engine |
EP3147477B1 (en) | 2015-09-23 | 2018-10-17 | Winterthur Gas & Diesel AG | Gas feeding system and cylinder for a reciprocating piston engine, reciprocating combustion engine, and method for operating same |
DE102015219526B4 (en) * | 2015-10-08 | 2017-09-14 | Continental Automotive Gmbh | Method and system for operating an internal combustion engine |
DE102016222022A1 (en) | 2016-11-10 | 2018-05-17 | Robert Bosch Gmbh | Method and arrangement for lambda-based control of a mechanism for adjusting a valve lift curve |
DE102017201866A1 (en) * | 2017-02-07 | 2018-08-09 | Robert Bosch Gmbh | Method and arrangement for controlling a mechanism for adjusting a valve lift curve |
US20230011920A1 (en) * | 2019-12-20 | 2023-01-12 | Volvo Truck Corporation | Method for diagnosing a part of a powertrain system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE69021139T2 (en) * | 1989-06-15 | 1996-04-18 | Honda Motor Co Ltd | Fault detection method for a system for controlling the adjustment of the working angle of valves in internal combustion engines. |
DE19520117C2 (en) * | 1995-06-01 | 2002-04-11 | Porsche Ag | Valve train of an internal combustion engine |
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JPS643216A (en) * | 1987-06-25 | 1989-01-09 | Honda Motor Co Ltd | Valve system controller for internal combustion engine |
US4957074A (en) * | 1989-11-27 | 1990-09-18 | Siemens Automotive L.P. | Closed loop electric valve control for I. C. engine |
DE4329976A1 (en) * | 1993-09-04 | 1995-03-09 | Bosch Gmbh Robert | Method for measuring the travel (lift) of a valve and setting a valve |
DE4433543C1 (en) * | 1994-09-20 | 1995-12-21 | Sonplas Gmbh Planung Montage U | Adjusting and checking flow through valves |
US5775355A (en) * | 1996-03-11 | 1998-07-07 | Robert Bosch Gmbh | Method for measuring the lift of a valve needle of a valve and for adjusting the volume of media flow of the valve |
JP3245631B2 (en) * | 1996-10-15 | 2002-01-15 | 現代自動車株式会社 | Apparatus and method for measuring interference between intake and exhaust valves and pistons |
DE19712843C2 (en) * | 1997-03-26 | 2001-02-01 | Siemens Ag | Method and device for controlling an internal combustion engine |
JP4211296B2 (en) * | 2002-06-12 | 2009-01-21 | 日産自動車株式会社 | Knock control device for internal combustion engine |
US6866020B2 (en) * | 2002-06-12 | 2005-03-15 | Delphi Technologies, Inc. | Vacuum management system for engine with variable valve lift |
US6848301B2 (en) * | 2002-11-28 | 2005-02-01 | Denso Corporation | Cylinder-by-cylinder intake air quantity detecting apparatus for internal combustion engine |
-
2002
- 2002-07-09 DE DE10230899A patent/DE10230899B4/en not_active Expired - Fee Related
-
2003
- 2003-07-08 FR FR0308338A patent/FR2842253A1/en active Pending
- 2003-07-08 US US10/614,346 patent/US6948358B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69021139T2 (en) * | 1989-06-15 | 1996-04-18 | Honda Motor Co Ltd | Fault detection method for a system for controlling the adjustment of the working angle of valves in internal combustion engines. |
DE19520117C2 (en) * | 1995-06-01 | 2002-04-11 | Porsche Ag | Valve train of an internal combustion engine |
Non-Patent Citations (1)
Title |
---|
MTZ Motortechnische Zeitschrift 61 (2000) 11, S. 730-743 * |
Also Published As
Publication number | Publication date |
---|---|
DE10230899A1 (en) | 2004-02-05 |
US20050044934A1 (en) | 2005-03-03 |
US6948358B2 (en) | 2005-09-27 |
FR2842253A1 (en) | 2004-01-16 |
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